/* ===== Fast Light — Design tokens ===== */
:root {
  --black: #0a0a0a;
  --black-soft: #141414;
  --black-card: #171717;
  --border: #2a2a2a;
  --gold: #f7a600;
  --gold-light: #ffc94d;
  --white: #ffffff;
  --gray: #b8b8b8;
  --gray-dim: #8a8a8a;
  --radius: 14px;
  --container: 1180px;
  --shadow-gold: 0 0 0 1px rgba(247,166,0,.25), 0 12px 30px rgba(247,166,0,.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-weight: 800; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
p { margin: 0 0 1em; color: var(--gray); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px; }

.icon { width: 20px; height: 20px; flex-shrink: 0; }
.icon-lg { width: 34px; height: 34px; color: var(--gold); margin-bottom: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px; font-weight: 700; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--gold); color: #1a1200; }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); }
.btn-outline { border-color: rgba(255,255,255,.25); color: var(--white); background: transparent; }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }
.btn-block { width: 100%; }
.btn-sm { padding: 10px 18px; font-size: .85rem; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.brand-logo { height: 34px; width: auto; }
.main-nav { display: flex; gap: 30px; }
.main-nav a { font-size: .92rem; font-weight: 600; color: var(--gray); transition: color .2s; }
.main-nav a:hover { color: var(--gold); }
.header-actions { display: flex; align-items: center; gap: 14px; }

.lang-toggle { display: flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.lang-btn { background: transparent; border: none; color: var(--gray-dim); font-size: .78rem; font-weight: 700; padding: 7px 12px; cursor: pointer; }
.lang-btn.is-active { background: var(--gold); color: #1a1200; }

.cart-btn { position: relative; background: transparent; border: 1px solid var(--border); color: var(--white); width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.cart-btn:hover { border-color: var(--gold); color: var(--gold); }
.cart-count { position: absolute; top: -6px; right: -6px; background: var(--gold); color: #1a1200; font-size: .68rem; font-weight: 800; min-width: 18px; height: 18px; border-radius: 999px; display: flex; align-items: center; justify-content: center; padding: 0 4px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--white); border-radius: 2px; }

/* ===== Hero ===== */
.hero { position: relative; padding: 120px 0 90px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 10%, rgba(247,166,0,.16), transparent 55%),
              radial-gradient(circle at 10% 90%, rgba(247,166,0,.08), transparent 45%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 760px; }
.eyebrow, .section-eyebrow {
  color: var(--gold); font-weight: 800; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 14px;
}
.hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); }
.hero-sub { font-size: 1.08rem; max-width: 620px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin: 30px 0 44px; }
.hero-badges { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 10px; color: var(--gray); font-weight: 600; font-size: .9rem; }
.hero-badge .icon { color: var(--gold); }

/* ===== Sections ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--black-soft); }
.section h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); max-width: 640px; }
.section-sub { max-width: 640px; font-size: 1.02rem; }

.grid { display: grid; gap: 26px; margin-top: 40px; }
.grid-kits { grid-template-columns: repeat(3, 1fr); }
.grid-components { grid-template-columns: repeat(4, 1fr); }
.grid-why { grid-template-columns: repeat(4, 1fr); }

/* ===== Kit cards ===== */
.kit-card {
  background: var(--black-card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .25s, transform .25s;
}
.kit-card:hover { box-shadow: var(--shadow-gold); transform: translateY(-3px); }
.kit-card-img { aspect-ratio: 1122 / 1400; overflow: hidden; background: #000; }
.kit-card-img img { width: 100%; height: 100%; object-fit: cover; }
.kit-card-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.kit-card-name { font-size: 1.25rem; font-weight: 800; margin-bottom: 4px; }
.kit-card-tag { color: var(--gold); font-size: .85rem; font-weight: 700; margin-bottom: 16px; }
.kit-specs { list-style: none; padding: 0; margin: 0 0 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.kit-specs li { display: flex; gap: 10px; font-size: .86rem; color: var(--gray); }
.kit-specs .icon { color: var(--gold); margin-top: 2px; }
.kit-card-actions { display: flex; gap: 10px; }

/* ===== Component cards ===== */
.component-card {
  background: var(--black-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px; text-align: left;
}
.component-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.component-card p { font-size: .9rem; margin-bottom: 20px; }

/* ===== Why us ===== */
.why-card { text-align: left; }
.why-card h3 { font-size: 1.05rem; }
.why-card p { font-size: .9rem; }

/* ===== FAQ ===== */
.faq-list { margin-top: 34px; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--black-card); border: 1px solid var(--border); border-radius: 10px;
  padding: 4px 22px;
}
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 0; font-weight: 700; font-size: 1rem;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; color: var(--gold); font-size: 1.4rem; font-weight: 400; flex-shrink: 0; transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding-bottom: 20px; margin: 0; font-size: .92rem; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; margin-top: 40px; align-items: start; }
.contact-line { display: flex; align-items: center; gap: 12px; font-weight: 600; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: .95rem; }
.contact-line .icon { color: var(--gold); }
.contact-whatsapp { margin-top: 24px; }

.contact-form { background: var(--black-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; display: flex; flex-direction: column; gap: 6px; }
.contact-form h3 { margin-bottom: 14px; }
.contact-form label { font-size: .8rem; font-weight: 700; color: var(--gray); margin: 10px 0 4px; }
.contact-form input, .contact-form textarea {
  background: var(--black); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px;
  color: var(--white); font-size: .92rem; font-family: inherit; resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--gold); }
.cart-summary { font-size: .82rem; color: var(--gray-dim); margin: 14px 0; }
.cart-summary strong { color: var(--gray); }
.contact-form .btn { margin-top: 18px; }
.form-note { font-size: .78rem; text-align: center; margin: 12px 0 0; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); padding: 56px 0 30px; }
.footer-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.footer-logo { height: 28px; }
.footer-tagline { max-width: 420px; font-size: .9rem; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; margin: 8px 0; }
.footer-links a { font-size: .85rem; font-weight: 600; color: var(--gray); }
.footer-links a:hover { color: var(--gold); }
.footer-copy { font-size: .78rem; color: var(--gray-dim); margin: 0; }

/* ===== Cart drawer ===== */
.cart-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 200;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.cart-overlay.is-open { opacity: 1; pointer-events: auto; }

.cart-drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: 400px; max-width: 90vw;
  background: var(--black-soft); border-left: 1px solid var(--border);
  z-index: 201; display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .3s ease;
}
.cart-drawer.is-open { transform: translateX(0); }
.cart-drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 24px; border-bottom: 1px solid var(--border); }
.cart-drawer-head h3 { margin: 0; }
.cart-close { background: none; border: none; color: var(--white); font-size: 1.6rem; cursor: pointer; line-height: 1; }
.cart-items { flex: 1; overflow-y: auto; padding: 10px 24px; }
.cart-empty { text-align: center; color: var(--gray-dim); font-size: .88rem; padding: 40px 24px; }
.cart-drawer-foot { padding: 20px 24px; border-top: 1px solid var(--border); }

.cart-item { display: flex; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--border); align-items: center; }
.cart-item-img { width: 56px; height: 56px; border-radius: 8px; overflow: hidden; background: #000; flex-shrink: 0; }
.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
.cart-item-info { flex: 1; min-width: 0; }
.cart-item-name { font-weight: 700; font-size: .92rem; }
.cart-item-qty { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.qty-btn { width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--border); background: transparent; color: var(--white); cursor: pointer; font-size: .9rem; line-height: 1; }
.qty-btn:hover { border-color: var(--gold); color: var(--gold); }
.cart-item-remove { background: none; border: none; color: var(--gray-dim); cursor: pointer; font-size: .78rem; text-decoration: underline; }

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .grid-kits { grid-template-columns: repeat(2, 1fr); }
  .grid-components, .grid-why { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 720px) {
  .main-nav { position: fixed; top: 76px; left: 0; right: 0; background: var(--black); border-bottom: 1px solid var(--border); flex-direction: column; padding: 10px 24px 20px; gap: 4px; transform: translateY(-140%); transition: transform .25s; z-index: 99; }
  .main-nav.is-open { transform: translateY(0); }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: flex; }
  .hero { padding: 90px 0 60px; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-badges { gap: 18px 26px; }
  .section { padding: 64px 0; }
  .grid-kits, .grid-components, .grid-why { grid-template-columns: 1fr; }
}